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Results for “SHEEP DISEASES”

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At least 73 records · Page 4Linked to original sources
PubMed1990

Characterisation of Bacteroides from sheep periodontal disease by SDS-PAGE of outer membrane proteins.

Isolates of Bacteroides species obtained from a longitudinal study of developing periodontal disease in sheep were analysed by SDS-PAGE. Protein profiles of Sarkosyl-insoluble outer membrane extracts were compared within groups of isolates which had already been defined by conventional biochemical techniques. Heterogeneity was exhibited within most groups. Isolates of B. gingivalis and B. asaccharolyticus shown to be similar to human isolates by conventional biochemical tests, gave different protein profiles from the respective type cultures. The sheep B. gingivalis-like isolates were however homogeneous, while the B. asaccharolyticus-like organisms could be divided into 3 subgroups. SDS-PAGE appears to be a useful tool for the examination of bacterial flora and recognition of subgroups of subspecies.

Animals↗
PubMed2002

Accumulation of sapogenin conjugates and histological changes in the liver and kidneys of lambs suffering from alveld, a hepatogenous photosensitization disease of sheep grazing Narthecium ossifragum.

Sixteen lambs exhibiting hepatogenous photosensitization (alveld) after grazing pasture containing Narthecium ossifragum and seven nonphotosensitized lambs grazing the same pastures were studied. All the alveld-affected lambs revealed liver damage dominated by single cell necrosis, portal fibroplasia and bile duct proliferation. Crystalloid clefts were demonstrated in the bile ducts of two and in the hepatocytes and Kupffer cells of nine photosensitized lambs. Plasma bilirubin concentration was severely increased in ten of the cases of alveld whereas the activity of aspartate aminotransferase was moderately to severely increased in seven cases. The activity of glutamate dehydrogenase was moderately elevated in one of the photosensitized lambs. The main histopathological findings in the kidneys from the alveld-affected lambs were dilated tubules, often with eosinophilic material in the tubular lumina. Regenerative changes were seen in a large proportion of the renal sections. Elevated plasma concentrations of urea and creatinine, and the renal histopathological changes, suggested that the photosensitized lambs had been through a phase of renal injury. Analysis of the free and conjugated sapogenin content in liver tissue and bile was performed by gas chromatography-mass spectrometry. There were significantly higher concentrations of conjugated episapogenins in both the liver and bile in the alveld-affected lambs than in the nonphotosensitized lambs.

Animals↗
PubMed1994

[Clinical and epidemiologic aspects of Aujeszky's disease in sheep].

Aujeszky's disease virus is spread by horizontal transmission from infected pigs to sheep with high losses. Clinical symptoms in sheep, for example pruritus, are obvious. Infection of sheep can be avoided by strictly separating pigs and sheep. Vaccination of pigs therefore indirectly also gives good protection to other susceptible species on the farm.

Animals↗
PubMed1997

General review of tick-borne diseases of sheep and goats world-wide.

A general review of the tick-borne diseases of sheep and goats is given, with the emphasis on those thought to be of greatest economic importance. These include babesiosis, theileriosis, cowdriosis, anaplasmosis, ehrlichiosis, Nairobi sheep diseases and tick paralysis. A commented list of tick-borne diseases and their vectors is presented. It is stressed that large gaps remain in our knowledge of the real importance in the field of many of these diseases, especially in local stock.

Anaplasmosis↗
PubMed1984

Johne's disease in sheep.

Johne's disease was identified in sheep flocks on 6 farms in one area of the central tablelands of New South Wales. The sources of infection were not determined and no common source of all infections was identified. The disease was not diagnosed in cattle that were run on 4 of the farms.

Age Factors↗
PubMed1997

Major tick-borne diseases of sheep and goats in the Sudan.

Tick-borne diseases of sheep and goats have not been thoroughly investigated in the Sudan. Heartwater, the most important of the group, was reported only in the early '60s and malignant theileriosis of sheep in the mid '80s. Other tick-borne diseases of sheep and goats like anaplasmosis, Q fever, Nairobi sheep disease and babesiosis are expected to be present although the vector which transmit Nairobi sheep disease, Rhipicephalus appendiculatus is confined to a very narrow stretch on the Southern border with Zaire, Uganda and Kenya.

Animals↗